X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Fdemo%2Fdemo.c;h=7111097bb7657046d70c4f1efcf03e4cf39092cf;hb=HEAD;hp=b8f36fbfd4e77c967c7994b016f799efe3861b4c;hpb=6239c175c1b967b577f760032d326322dd4c4576;p=libsigrok.git diff --git a/hardware/demo/demo.c b/hardware/demo/demo.c deleted file mode 100644 index b8f36fbf..00000000 --- a/hardware/demo/demo.c +++ /dev/null @@ -1,332 +0,0 @@ -/* - * This file is part of the sigrok project. - * - * Copyright (C) 2010 Uwe Hermann - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include -#include -#include -#include "config.h" - -#define NUM_PROBES 8 -#define NUM_TRIGGER_STAGES 4 -#define TRIGGER_TYPES "01" - -/* Software trigger implementation: positive values indicate trigger stage. */ -#define TRIGGER_FIRED -1 - -static int capabilities[] = { - HWCAP_LOGIC_ANALYZER, - HWCAP_SAMPLERATE, - HWCAP_LIMIT_SAMPLES, -}; - -/* Random selection of samplerates this "device" shall support. */ -static uint64_t supported_samplerates[] = { - KHZ(100), - KHZ(500), - MHZ(1), - MHZ(2), - MHZ(12), - MHZ(24), - 0, -}; - -static struct samplerates samplerates = { - KHZ(100), - MHZ(24), - 0, - supported_samplerates, -}; - -/* TODO: All of these should go in a device-specific struct. */ -static uint64_t cur_samplerate = 0; -static uint64_t limit_samples = 0; -// static uint8_t probe_mask = 0; -// static uint8_t trigger_mask[NUM_TRIGGER_STAGES] = { 0 }; -// static uint8_t trigger_value[NUM_TRIGGER_STAGES] = { 0 }; -// static uint8_t trigger_buffer[NUM_TRIGGER_STAGES] = { 0 }; - -// static int trigger_stage = TRIGGER_FIRED; - -static int hw_set_configuration(int device_index, int capability, void *value); -static void hw_stop_acquisition(int device_index, gpointer session_device_id); - -#if 0 -static int configure_probes(GSList *probes) -{ - struct probe *probe; - GSList *l; - int probe_bit, stage, i; - char *tc; - - probe_mask = 0; - for (i = 0; i < NUM_TRIGGER_STAGES; i++) { - trigger_mask[i] = 0; - trigger_value[i] = 0; - } - - stage = -1; - for (l = probes; l; l = l->next) { - probe = (struct probe *)l->data; - if (!(probe->enabled)) - continue; - probe_bit = 1 << (probe->index - 1); - probe_mask |= probe_bit; - if (!(probe->trigger)) - continue; - - stage = 0; - for (tc = probe->trigger; *tc; tc++) { - trigger_mask[stage] |= probe_bit; - if (*tc == '1') - trigger_value[stage] |= probe_bit; - stage++; - if (stage > NUM_TRIGGER_STAGES) - return SIGROK_ERR; - } - } - - if (stage == -1) - /* - * We didn't configure any triggers, make sure acquisition - * doesn't wait for any. - */ - trigger_stage = TRIGGER_FIRED; - else - trigger_stage = 0; - - return SIGROK_OK; -} -#endif - -static int hw_init(char *deviceinfo) -{ - /* Avoid compiler warning. */ - deviceinfo = deviceinfo; - - /* Nothing needed so far. */ - return 1; /* FIXME? */ -} - -static int hw_opendev(int device_index) -{ - /* Avoid compiler warning. */ - device_index = device_index; - - /* Nothing needed so far. */ - return SIGROK_OK; -} - -static void hw_closedev(int device_index) -{ - /* Avoid compiler warning. */ - device_index = device_index; - - /* Nothing needed so far. */ -} - -static void hw_cleanup(void) -{ - /* Nothing needed so far. */ -} - -static void *hw_get_device_info(int device_index, int device_info_id) -{ - void *info = NULL; - - /* Avoid compiler warning. */ - device_index = device_index; - - switch (device_info_id) { - case DI_INSTANCE: - /// info = sdi; - /* TODO */ - break; - case DI_NUM_PROBES: - info = GINT_TO_POINTER(NUM_PROBES); - break; - case DI_SAMPLERATES: - info = &samplerates; - break; - case DI_TRIGGER_TYPES: - info = TRIGGER_TYPES; - break; - case DI_CUR_SAMPLERATE: - info = &cur_samplerate; - break; - } - - return info; -} - -static int hw_get_status(int device_index) -{ - /* Avoid compiler warning. */ - device_index = device_index; - - return 0; /* FIXME */ -} - -static int *hw_get_capabilities(void) -{ - return capabilities; -} - -static int hw_set_configuration(int device_index, int capability, void *value) -{ - int ret; - - /* Avoid compiler warning. */ - device_index = device_index; - - if (capability == HWCAP_SAMPLERATE) { - cur_samplerate = *(uint64_t *)value; - ret = SIGROK_OK; - } else if (capability == HWCAP_PROBECONFIG) { - // ret = configure_probes((GSList *) value); - ret = SIGROK_ERR; - } else if (capability == HWCAP_LIMIT_SAMPLES) { - limit_samples = strtoull(value, NULL, 10); - ret = SIGROK_OK; - } else { - ret = SIGROK_ERR; - } - - return ret; -} - -static int hw_start_acquisition(int device_index, gpointer session_device_id) -{ - struct datafeed_packet *packet; - struct datafeed_header *header; - unsigned char *buf; - - /* Avoid compiler warning. */ - device_index = device_index; - - packet = malloc(sizeof(struct datafeed_packet)); - header = malloc(sizeof(struct datafeed_header)); - buf = malloc(2048); - if (!packet || !header || !buf) - return SIGROK_ERR_MALLOC; - - /* FIXME */ - memset(buf, 0x55, 2048); - - packet->type = DF_HEADER; - packet->length = sizeof(struct datafeed_header); - packet->payload = (unsigned char *)header; - header->feed_version = 1; - gettimeofday(&header->starttime, NULL); - header->samplerate = cur_samplerate; - header->protocol_id = PROTO_RAW; - header->num_probes = NUM_PROBES; - session_bus(session_device_id, packet); - free(header); - free(packet); - - return SIGROK_OK; -} - -#if 0 -void receive_transfer(struct libusb_transfer *transfer) -{ - static int num_samples = 0; - static int empty_transfer_count = 0; - struct datafeed_packet packet; - void *user_data; - int cur_buflen, trigger_offset, i; - unsigned char *cur_buf, *new_buf; - - g_message("receive_transfer(): status %d received %d bytes", - transfer->status, transfer->actual_length); - - /* Save incoming transfer before reusing the transfer struct. */ - cur_buf = transfer->buffer; - cur_buflen = transfer->actual_length; - user_data = transfer->user_data; - - /* Fire off a new request. */ - new_buf = g_malloc(4096); - transfer->buffer = new_buf; - transfer->length = 4096; - if (libusb_submit_transfer(transfer) != 0) { - /* TODO: Stop session? */ - g_warning("eek"); - } - - trigger_offset = 0; - if (trigger_stage >= 0) { - for (i = 0; i < cur_buflen; i++) { - trigger_helper(i, cur_buf, &packet, user_data, - &trigger_offset); - } - } - - if (trigger_stage == TRIGGER_FIRED) { - /* Send the incoming transfer to the session bus. */ - packet.type = DF_LOGIC8; - packet.length = cur_buflen - trigger_offset; - packet.payload = cur_buf + trigger_offset; - session_bus(user_data, &packet); - free(cur_buf); - - num_samples += cur_buflen; - if ((unsigned int)num_samples > limit_samples) { - hw_stop_acquisition(-1, user_data); - } - } else { - /* - * TODO: Buffer pre-trigger data in capture - * ratio-sized buffer. - */ - } -} -#endif - -/* This stops acquisition on ALL devices, ignoring device_index. */ -static void hw_stop_acquisition(int device_index, gpointer session_device_id) -{ - struct datafeed_packet packet; - - /* QUICK HACK */ - device_index = device_index; - - packet.type = DF_END; - session_bus(session_device_id, &packet); - - /// receive_transfer(NULL); - - /* TODO: Need to cancel and free any queued up transfers. */ -} - -struct device_plugin demo_plugin_info = { - "demo", - 1, - hw_init, - hw_cleanup, - hw_opendev, - hw_closedev, - hw_get_device_info, - hw_get_status, - hw_get_capabilities, - hw_set_configuration, - hw_start_acquisition, - hw_stop_acquisition, -};